| 泥沙颗粒表面磷吸附分布的实验研究 | |
| 陈明洪 ; 方红卫 ; 陈志和 ; CHEN Ming-hong ; FANG Hong-wei ; CHEN Zhi-he | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | SEM 吸附 元素分布 微表面 络合 SEM adsorption element distribution micro-surface complexation X52 TV149 |
| 其他题名 | Experiment of phosphorus distribution on sediment surface |
| 中文摘要 | 泥沙与污染物的作用过程十分复杂,传统吸附理论主要从总量上对这一过程进行描述。本文借助扫描电子显微镜(SEM)等手段从微观尺度出发,研究磷污染物在颗粒表面的吸附现象,并通过图像处理和微分几何方法分析磷在泥沙表面的分布规律。结果表明在颗粒表面的鞍部、凹地和凸起等地方存在较多活性吸附位。在特定水环境中,这些吸附位对磷的弱酸根配体及其他离子在颗粒表面上竞争吸附起着非常重要的作用。; The interactions between sands and contamination are quite complex.Traditional adsorption theory mainly shows the quantity results based on the distribution between the liquid phase and solid phase.In this paper,high resolution scanning electron microscope(SEM) is used to study the phenomenon of phosphoric pollutant adsorbed by sand particles from microcosmic view.Image analysis process methods and differential geometry theory are used to address the distribution law of phosphorus on sand particle surface.It can be found that more active positions for adsorption exist on the surface of nek,concave and convex areas.In some special aquatic environment,all these positions play an important role to the competitive adsorption among weak acid ligands of phosphorus and other ions.; 国家自然科学基金(10872110,50325929) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/60069]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 陈明洪,方红卫,陈志和,等. 泥沙颗粒表面磷吸附分布的实验研究[J],2010, 2010. |
| APA | 陈明洪,方红卫,陈志和,CHEN Ming-hong,FANG Hong-wei,&CHEN Zhi-he.(2010).泥沙颗粒表面磷吸附分布的实验研究.. |
| MLA | 陈明洪,et al."泥沙颗粒表面磷吸附分布的实验研究".(2010). |
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